My kiddos adore what I've always called shakes. A more popular term would be "smoothies", I suppose, but no matter what you call them my kids love 'em. They're very versatile - I usually just throw together whatever I have into the blender and they drink it right up. Even Little One comes running when she hears the blender going. I've posted about them before, and here's a different take on their favorite treat:
Piña Colada Shakes
2-6 ounce cups orange creme yogurt
1 cup frozen pineapple chunks
1/2 teaspoon coconut extract
1 cup milk
Combine all the ingredients in a blender and process until smooth.